Claude a



C. A. P. TURNER.

FIREPROOF FLOORING.

APPLICATION FILED IuIIE 21, 191s.

Patented Oct. 28, 1919.

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\ [film OLAUDEA. P. TURNER, OE MINNEAPOLIS, MINNESOTA.

l FIEEPEOOE FLOORING.

o application iea'gruneei, 191e.

To all whom it. may concern Be it known that I, CLAUDE A. I).TURNER,

Y a citizen of the United States, residing at Minneapolis, in theVcounty of Hennepinv and State'of Minnesota, have invented certainv newand useful Improvementsin AFireproof Flooring, of which the following isa specil fication.

My invention relates to fire-proof flooring and has for its object toprovide a combination tile and-,concrete floor4 supported by Vwalls o rbeams such as reinforced concrete beams or other form ofibeams, the tilebeing so fabricated as to form a true voussoir flat tile arch, theportions of the tile abutting and providing open recesses in which theconcrete flows as poured to form" a key or keys for the arclr. .vIyfurther, provide on porv 5. tions 'of the tile whichcome at tha-haunchof the arch projections so that when the concrete has been poured andset the voussoir arch as Ia whole is locked or anchored in the concreteagainst downward as well as other displacement. i

The full objects and advantages of my invention will appear inconnection with the detailed description thereof and are particularlypointed out in the claims.

In the drawings, illustrating the application of my invention in onefor1n,-

Figure 1 is a sectional view of a portion of a floor embodying myimprovements. Fig. 2 is a .sectional view of a portion of the floorshowing voussoir arches formed of pairs of tile. Fig. 3 isa similar viewshow-V ing` an arch formed of three tiles. i In the practice of theinvention satisfactory results are obtained by fabricating the tile on atwelve inch press and cutting the same in twelve inch lengths. It thusfollows that the twotile arch of Fig. 2 will be approximately two feetin breadth while the three-tile arch of Fig. 3 will be three feet inbreadth.

Referring to Fig. 2, tile members 10 and Y 11 are respectively formedwith `curved pori tions 13 and 14, the tile members, of course,

being identical as fabricated but being positioned symmetrically in thearch. The vupper inside portion of each tile member is cut away from avertical line so that when the tile are positioned with the lowerportions abutting each other a space indicated at 15 is left into whichthe concrete can flow to form a key. The tile members are formed withprojections 16, 17 Iat the lower i Specification of Letters Patent.

Patented oet. as, isis. i serieu No. 104,877.

As shown in Fig. 3, blocks 2O and 21, `si1nilar in character, aresymmetrically positioned in an arch 22 Lso lthat their curved portions23' and 24 extend in opposite directions, terminating in projections 25.and 26,

similar to the projections 16 and 17 of blocks 10 and 11. In this form acenter block 27 is employed formed with lledges 28, 29 adapted to 4restupon corresponding ledges n30, 31 of blocks 20 and 21 when the lowerportions of said blocks are, respectively in abutting position. Theadjacent sides of the upper portions of blocks 20, 27 and 21, 27 are soformed as to leave spaces 32 and 33 into which the concrete may flow toform keys similar t0 the keys 15 previously described.

In practice the fioor may be fabricated either in conjunction with orafter the erection of the beam construction for supporting the same. Astaging is set up between the beams or in conjunction with beam formsand the blocks set in position upon the staging to form the voussoirarch structure 19 or 22, according to the form of tile employed. Thereinforcing members 18, if used, are placed in position between thevoussoir arches, and the concrete, indicated generally by 34, is poured.This Hows into the key openings l5 or 32, 33 and beneath the haunchprojections 16, 17 or 25, 26, forming large compression flanges 35 ofconcrete and keying the arch members 19 or 22 and also locking said archmembers into the fioor by reason of said haunch projections.

The advantages of this construction will be apparent. The tile may bemade relatively light, inay be economically fabricated and can bepositioned in the floor by co1nparatively unskilled labor. The resultingfloor structure will be light in weight in proportion to itsload-supporting capacity. The arches are true voussoir arches in whichthe keys are formed of concrete during the pouring of the same and areeffectively locked or anchored in the floor by the proj ections at thehaunch of the arch. It will be understood that many different forms oftile may be fabricated embodying the improvements of my invention andcorresponding diii'erences in the shape and dimension of the archeswould result; and I do not wish to be limited to the precise form ordetail of the structures herein shown and described.

I claim:

1. A combination tile and concrete floor comprising 'a tile voussoirflat arch composed of blocks, the adjacent faces oi' which abut eachother in their lower portions and di verge from each other in theirupper portions to provide recesses of considerable depth extendingacross the faces of the blocks, and concrete above and at the sides or'said arch and in said recesses.

2. A combination tile and concrete Hoor comprising a tile voussoir flatarch composed of blocks, the adjacent faces of which abut each other intheir lower portions and diverge from each other in their upper'portions to provide recesses of considerable depth extending across thefaces of the blocks, and concrete above and at the sides of said archand in said recesses, some of said blocks having projections at thehaunches of the 'arch for anchoring the arch in the concrete.

4. A combination tile and concrete fioor comprising a tile voussoir flatarch 4formed of two series of said blocks and a series or' centralblocks, the side blocks and the central blocks having their adjacentfaces abutting each other in their lower portionsvand having their racesdiverging from each other in their upper portions to provide recesses ofconsiderable depth extending across the faces of the blocks', andconcrete above and at the sides of said arch and in said recesses. Intestimony whereof I aflix'my signature in presence of' two witnesses.

CLAUDE A. I. TURNER. IVitnesses: l

F. A. WHITEIEY, F. A. CAMP.

Copies of this patent may be obtained for ve cents each, by addressingtheg.ommissioner of Patents,

Washington, D. C.

